Update app.py

app.py

@@ -1,14 +1,45 @@
 import gradio as gr
 import pandas as pd
+from bcrypt import hashpw, gensalt, checkpw
 
-# Placeholder functions for user validation and creation
-def check_credentials(email, password):
-    return email == "test@example.com" and password == "password123"
+# File for storing user data
+USER_FILE = "users.xlsx"
 
+# Utility Functions
 def save_user(name, phone, email, password):
-    if email == "existing@example.com":
+    """Save user details to Excel file."""
+    try:
+        # Load existing users
+        try:
+            users = pd.read_excel(USER_FILE)
+        except FileNotFoundError:
+            users = pd.DataFrame(columns=["Name", "Phone", "Email", "Password"])
+
+        # Check if email already exists
+        if email in users["Email"].values:
+            return False  # User already exists
+
+        # Add new user
+        hashed_password = hashpw(password.encode(), gensalt()).decode()
+        new_user = {"Name": name, "Phone": phone, "Email": email, "Password": hashed_password}
+        users = pd.concat([users, pd.DataFrame([new_user])], ignore_index=True)
+        users.to_excel(USER_FILE, index=False)
+        return True
+    except Exception as e:
+        print(f"Error saving user: {e}")
         return False
-    return True
+
+def check_credentials(email, password):
+    """Check user credentials during login."""
+    try:
+        users = pd.read_excel(USER_FILE)
+        user = users[users["Email"] == email]
+        if not user.empty:
+            return checkpw(password.encode(), user.iloc[0]["Password"].encode())
+        return False
+    except FileNotFoundError:
+        return False
+
 # Function to load the menu data
 def load_menu():
     menu_file = "menu.xlsx"  # Ensure this file exists in the same directory
@@ -251,22 +282,22 @@ def app():
         # Login Page
         with gr.Column(visible=True) as login_section:
             gr.Markdown("# Login Page")
-            email = gr.Textbox(label="Email", placeholder="Enter your email")
-            password = gr.Textbox(label="Password", placeholder="Enter your password", type="password")
-            error_box = gr.Markdown("", visible=False)
-            login_btn = gr.Button("Login")
-            create_account_btn = gr.Button("Create an Account")
+            login_email = gr.Textbox(label="Email", placeholder="Enter your email")
+            login_password = gr.Textbox(label="Password", placeholder="Enter your password", type="password")
+            login_error = gr.Label("")
+            login_button = gr.Button("Login")
+            go_to_signup = gr.Button("Create an Account")
 
-        # Sign-Up Page
+        # Signup Page
         with gr.Column(visible=False) as signup_section:
-            gr.Markdown("# Sign Up Page")
-            name = gr.Textbox(label="Name", placeholder="Enter your full name")
-            phone = gr.Textbox(label="Phone", placeholder="Enter your phone number")
+            gr.Markdown("# Signup Page")
+            signup_name = gr.Textbox(label="Name", placeholder="Enter your full name")
+            signup_phone = gr.Textbox(label="Phone", placeholder="Enter your phone number")
             signup_email = gr.Textbox(label="Email", placeholder="Enter your email")
-            signup_password = gr.Textbox(label="Password", placeholder="Enter a password", type="password")
-            success_message = gr.Markdown("", visible=False)
-            submit_btn = gr.Button("Sign Up")
-            back_to_login_btn = gr.Button("Back to Login")
+            signup_password = gr.Textbox(label="Password", placeholder="Enter your password", type="password")
+            signup_message = gr.Label("")
+            signup_button = gr.Button("Sign Up")
+            go_to_login = gr.Button("Back to Login")
 
         # Menu Page
         with gr.Column(visible=False) as menu_section:
@@ -327,22 +358,23 @@ def app():
             gr.HTML(modal_and_cart_js)
 
         # Button Bindings
-        login_btn.click(
-            authenticate_user,
-            inputs=[email, password],
-            outputs=[login_section, menu_section, error_box],
+        # Button Logic
+        login_button.click(
+            lambda email, password: (gr.update(visible=False), gr.update(visible=True), "") if check_credentials(email, password) else (gr.update(), gr.update(), "Invalid email or password."),
+            inputs=[login_email, login_password],
+            outputs=[login_section, menu_section, login_error],
         )
-        create_account_btn.click(
-            navigate_to_signup,
+        go_to_signup.click(
+            lambda: (gr.update(visible=False), gr.update(visible=True)),
             outputs=[login_section, signup_section],
         )
-        submit_btn.click(
-            create_account,
-            inputs=[name, phone, signup_email, signup_password],
-            outputs=[success_message, login_section, signup_section],
+        signup_button.click(
+            lambda name, phone, email, password: ("Signup successful! Please login.", gr.update(visible=True), gr.update(visible=False)) if save_user(name, phone, email, password) else ("Email already exists.", gr.update(visible=False), gr.update(visible=True)),
+            inputs=[signup_name, signup_phone, signup_email, signup_password],
+            outputs=[signup_message, login_section, signup_section],
         )
-        back_to_login_btn.click(
-            navigate_to_login,
+        go_to_login.click(
+            lambda: (gr.update(visible=True), gr.update(visible=False)),
             outputs=[login_section, signup_section],
         )